GetDir             29 tools/gn/import_manager.cc   scope->set_source_dir(file.GetDir());
GetDir             11 tools/gn/input_file.cc       dir_(name_.GetDir()),
GetDir            248 tools/gn/loader.cc   our_scope.set_source_dir(file_name.GetDir());
GetDir             33 tools/gn/source_file.h   SourceDir GetDir() const;